From f8bcf0c62b1007777ad21ad29e880e220a4495ea Mon Sep 17 00:00:00 2001
From: alpina0707 <jan.ortner@informatik.hs-fulda.de>
Date: Wed, 16 Feb 2022 21:14:54 +0100
Subject: [PATCH] added first test case for mute() & and added productive code
 for RadioPlayer

---
 .../java/device/radioPlayer/RadioPlayer.java   |  3 ++-
 .../device/radioPlayer/RadioPlayerTest.java    | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/main/java/device/radioPlayer/RadioPlayer.java b/src/main/java/device/radioPlayer/RadioPlayer.java
index 5ef8556..90bfffb 100644
--- a/src/main/java/device/radioPlayer/RadioPlayer.java
+++ b/src/main/java/device/radioPlayer/RadioPlayer.java
@@ -193,7 +193,8 @@ public class RadioPlayer implements Device {
 
     @Override
     public String mute() {
-        return null;
+        setLautstaerke(0);
+        return "RadioPlayer is muted now";
     }
 
     @Override
diff --git a/src/test/java/device/radioPlayer/RadioPlayerTest.java b/src/test/java/device/radioPlayer/RadioPlayerTest.java
index 4de54c2..af01010 100644
--- a/src/test/java/device/radioPlayer/RadioPlayerTest.java
+++ b/src/test/java/device/radioPlayer/RadioPlayerTest.java
@@ -342,4 +342,22 @@ class RadioPlayerTest {
                 Arguments.of("Test for return regional playlist", rp1, "region", rp1.regionPlaylist.toArray(new String[0]))
         );
     }
+
+    @ParameterizedTest
+    @MethodSource("muteOptions")
+    void testMute(String testName, RadioPlayer testRp, int expectedResult) {
+
+        int volume = testRp.getVolume();
+        assertThat(volume).describedAs(testName).isEqualTo(expectedResult);
+    }
+
+    static Stream<Arguments> muteOptions() {
+        RadioPlayer rp = new RadioPlayer();
+        rp.setLautstaerke(25);
+        rp.mute();
+
+        return Stream.of(
+                Arguments.of("Test for mute RadioPlayer if volume is actually 0", rp, 0)
+        );
+    }
 }
\ No newline at end of file